25143510252 has 48 divisors (see below), whose sum is σ = 67342204160. Its totient is φ = 7152484032.

The previous prime is 25143510233. The next prime is 25143510307. The reversal of 25143510252 is 25201534152.

It is a super-2 number, since 2×25143510252² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 634318 + ... + 672789.

Almost surely, 2^25143510252 is an apocalyptic number.

It is an amenable number.

25143510252 is an abundant number, since it is smaller than the sum of its proper divisors (42198693908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25143510252 is a wasteful number, since it uses less digits than its factorization.

25143510252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307350 (or 1307348 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 25143510252 in words is "twenty-five billion, one hundred forty-three million, five hundred ten thousand, two hundred fifty-two".